Searches for isospin-violating transitions χc0,2→π0ηc
Mikhail N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht et autres
We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions ${\ensuremath{\chi}}_{c0,2}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\eta}}_{c}$. The measurements are performed using $106\ifmmode\times\else\texttimes\fi{}1{0}^{6}$ $\ensuremath{\psi}(3686)$ events accumulated with the BESIII detector at the BEPCII ${e}^{+}{e}^{\ensuremath{-}}$ collider at a center-of-mass energy corresponding to the $\ensuremath{\psi}(3686)$ mass. …
nl, cn, ru, us, de, it, pk (code pays fourni par la source)
2 citations
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields